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_________ you take an active part in physical activity ______ be able to keep fit and stay healthy.

A. Only if; you will                       B. Only if; will you

C. Unless; you will                       D. Unless; will you

 

【答案】

B

【解析】

试题分析:考查倒装句:句意:只有你积极的参加体育活动,你才能保持健康。Only后面接状语从句的时候,主句应该用部分倒装,助动词will放在主语前面,选B。

考点:考查倒装句

 

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